NR ZBLX

AU Jongman,E.C.; Barnett,J.L.; Hemsworth,P.H.

TI The aversiveness of carbon dioxide stunning in pigs and a comparison of the CO2 stunner crate vs. the V-restrainer

QU International Workshop on Stunning Systems for Pigs and Animal Welfare. Danish Meat Research Institute. Billund, Denmark 25-27 August 1999

PT Proceedings

AB Using aversion learning techniques, the relative aversiveness of CO2 to pigs in comparison to a shock with an electric prodder, and the aversiveness of a CO2-stunner crate in comparison to the aversiveness of a V-belt restrainer used for electric stunning were examined. The results showed that 90% CO2 was considerably less aversive than an electric shock with a prodder. However, during exposure to 90% CO2 all pigs lost conscious, which may have affected their memory of the procedure. The pigs remained conscious after exposure to 60% CO2 and again showed virtually no aversion towards the stunner crate, while an electric shock with a prodder appeared highly aversive. The aversion to the V-restrainer belt and the CO2 crate were similar.

AD Jongman,E.C.; Victorian Inst Anim Sci, Anim Welfare Ctr, Sneydes Rd,Private Bag 7, Werribee, Vic 3030, Australia

SP englisch

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